Tolong kerjakan ya - Universityku

1. 3/5+3/4-1/3
2. 2 1/9+1/3-3/6
3. 5 1/2+2 5/8-5/12
4. 2 7/10-1 5/6+2/15
5. 7-5/8+1 1/12
tolong jawab yaa

Tolong kerjakan ya

$1. : frac{3}{5 } + frac{3}{4} - frac{1}{3} \ frac{36 + 45 - 20}{60} \ frac{61}{60} \ 1frac{1}{60}$

$2. : 2 frac{1}{9} + frac{1}{3} - frac{3}{6} \ frac{19}{9} + frac{1}{ 3} - frac{1}{2} \ frac{38 + 6 - 9}{18} \ frac{35}{18} \ 1frac{17}{18}$

$3. : 5 frac{1}{2} + 2 frac{5}{8} - frac{5}{12} \ frac{11}{2} + frac{21}{8} - frac{5}{12} \ frac{132 + 63 - 10}{24} \ frac{185}{24} \ 7 frac{17}{24}$

$4. : 2 frac{7}{10} - 1 frac{5}{6} + frac{2}{15} \ frac{27}{10} - frac{11}{6} + frac{2}{15} \ frac{81 - 55 + 4}{30} \ frac{30}{30} = 1$

$5. : 7 - frac{5}{8} + 1 frac{1}{2} \ frac{7}{1} - frac{5}{8} + frac{3}{2} \ frac{56 - 5 + 12}{8} \ frac{63}{8} \ 7 frac{7}{8}$

Penjelasan dengan langkah-langkah:

1. 3/5 + 3/4 – 1/3

= (60:5×3) + (60:4×3) – (60:3×1)

= 36/60 + 45/60 – 20/60

= 61/60

2. 2 1/9 + 1/3 – 3/6

= 19/9 + 1/3 – 3/6

= (36:9×19) + (36:3×1) – (36:6×3)

= 76/36 + 12/36 – 18/36

= 70/36

= 70/36 : 2/2

= 35/18

= 1 17/18

3.5 1/2 + 2 5/8 – 5/12

= 11/2 + 13/8 – 5/12

= (24:2×11) + (24:8×13) – (24:12×5)

= 132/24 + 39/24 – 10/24

= 83/24

= 3 11/24

4. 2 7/10 – 1 5/6 + 2/15

= 27/10 – 11/6 + 2/15

= (30:10×27) – (30:6×11) + (30:15×2)

= 81/30 – 55/30 + 4/30

= 132/30

= 132/30 : 2/2

= 66/15

= 4 6/15

5. 7 – 5/8 + 1 1/12

= 7/1 – 5/8 + 13/12

= (24:1×7) – (24:8×5) + (24:12×13)

= 168/24 – 15/24 + 26/24

= 69/24

= 69/24 : 3/3

= 23/8

= 2 7/8